harmonica, which is not terribly, terribly often, given what they give us, whenever i hear it, it stops me dead in my tracks, i think in part of what charlie said, in terms of what they are going for to get that sound out, but every time i hear it, whether it is charlie or stevie, it stops me, the sound of the instrument. >> it is so special when it is played at this level. when it comes to the blues, it has to be. >> to me, it is like when i am taking a solo, it is like i am singing the words, because you can make it sound happy or sad. it is all there. >> charlie, what is great on this show, you have had two of the greatest. stevie wonder, taj mahal.